"and he walks up to" joke

and he walks up to the cashier and asks "do you have any grapes?"the cashier responds.."No this is a department store we don't sell food we sell clothes!"so the duck leaves... and comes back the next day..
he walks up to the cashier and asks..
"do you have any grapes?"
the cashier responds,
"no we are a department store we don't sell grapes..we sell make up"the duck leaves and comes back the next day...he walks up to the cashier and asks..
"do you have any grapes?"and the cashier frustrated says,
"no for the final time we don't sell grapes and if you ask again I WILL NAIL YOUR DUCK FEET TO THE FLOOR!!!"the duck leaves...and comes back the next day...
he walks up to the cashier and asks,
"do you have any nails?"
the cash register responds...
"No."
so the duck asks..
"do you have any grapes?"